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  <title>Reclaims memory used by the Zend Engine memory manager</title>
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    <li>Reclaims memory used by the Zend Engine memory manager</li>
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  <div id="layout-content"><div id="function.gc-mem-caches" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">gc_mem_caches</h1>
  <p class="verinfo">(PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">gc_mem_caches</span> &mdash; <span class="dc-title">
   Reclaims memory used by the Zend Engine memory manager
 </span></p>

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 <div class="refsect1 description" id="refsect1-function.gc-mem-caches-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>gc_mem_caches</strong></span>(): <span class="type">int</span></div>

  <p class="para rdfs-comment">
   Reclaims memory used by the Zend Engine memory manager.
  </p>
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 <div class="refsect1 parameters" id="refsect1-function.gc-mem-caches-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.gc-mem-caches-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the number of bytes freed.
  </p>
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 <div class="refsect1 seealso" id="refsect1-function.gc-mem-caches-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="features.gc.html" class="link">Garbage Collection</a></li>
   </ul>
  </p>
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